I've been playing TheoTown 1.8.83 on my iPhone 11 today and got 1st iPhone freeze in my entire life. Really, I've been using iPhones for about 10 years and never had such situation.
While playing TheoTown, a message about traffic jam appeared so I clicked on "locate" button to see where is the problem. Then the music stopped playing, and iPhone has become unresponsive. I was unable to do anything. When I pressed physical lock button to turn the screen off, only backlight turned off, but there was still TheoTown visible on a dimmed screen. I was not able to turn the screen on, open multitasking, restart or turn off iPhone etc. After 1 minute I pressed VOL UP + LOCK and then iPhone started working again.
Here is a part of logs I found (full file is really long and has about 800 kB).

After this incident I noticed, that there is a newer version of TheoTown in AppStore, 1.8.85 so I'm going to update the game.